A discharge detection device and detection method for solar-blind ultraviolet substation equipment mounted on a UAV

Abstract

The invention discloses a discharge detection device for a solar-blind ultraviolet substation equipment mounted on a drone, comprising a drone body, a connection block fixedly mounted on the lower end of the drone body, a discharge detection head arranged on the lower side of the connection block, a conductive block correspondingly arranged inside the upper connection block of the discharge detection head, a card block slidably mounted on the left end of the connection block, and a card slot corresponding to the card block at the left end of the discharge detection head. When the invention is used, the discharge detection head is inserted into the connection block from bottom to top, and as the discharge detection head continuously rises, the discharge detection head will fit with the card block and squeeze the card block to move the card block to the left, compressing a second spring, and when the card block and the card slot are overlapped in height, under the action of the second spring, the card block is pushed to be inserted into the card slot, so as to facilitate the connection stabilization of the discharge detection head and avoid the possibility that the discharge detection head falls off from the connection block when the discharge detection head performs discharge detection of the solar-blind ultraviolet substation equipment mounted on the drone body.

Description

Technical Field

[0001] The present invention relates to the technical field of detection devices, and in particular to a discharge detection device and a detection method for solar-blind ultraviolet substation equipment carried by an unmanned aerial vehicle. Background Art

[0002] At present, in the prior art, when the discharge detection device of the day-blind ultraviolet substation equipment mounted on a drone is used, the detection head is easy to fall off the drone, affecting the detection quality, and the dust and water attached to the conductive block on the detection head can also affect the detection quality. Summary of the invention

[0003] The purpose of the present invention is to solve the problem in the prior art that when the discharge detection device of the day-blind ultraviolet substation equipment mounted on a drone is used, the detection head is easily fallen off the drone, affecting the detection quality, and the dust and water attached to the conductive block on the detection head can also affect the detection quality. A discharge detection device and detection method for the day-blind ultraviolet substation equipment mounted on a drone are proposed.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A discharge detection device for a day-blind ultraviolet substation equipment carried by a drone comprises a drone body, a connecting block is fixedly installed at the lower end of the drone body, a discharge detection head is arranged at the lower side of the connecting block, a conductive block is arranged inside the upper connecting block of the discharge detection head, a card block is slidably installed at the left end of the connecting block, and a card slot is provided at the card block corresponding to the left end of the discharge detection head, a piston rod is fixedly installed at the left end of the card block, a spring 2 is sleeved on the piston rod, a hollow cavity is provided inside the connecting block, a connecting pipe is fixedly installed inside the connecting block corresponding to the hollow cavity, an air nozzle is connected to the right end of the connecting pipe through a hose, a sponge block is arranged inside the connecting block corresponding to the conductive block on the discharge detection head, a movable plate is fixedly installed at the upper end of the sponge block, and a pressure plate is fixedly installed inside the connecting block corresponding to the movable plate, a support frame is fixedly installed at the middle part of the upper end of the drone body, and protective net rods are arranged around the support frame corresponding to the fan blades of the drone body, and a positioning rod is fixedly installed at one end of the protective net rod close to the middle part of the support frame, and the positioning rod is inserted into the support frame.

[0006] Preferably, a bracket is hinged on the air nozzle, and the left end of the bracket is fixedly connected to the inside of the connecting block.

[0007] Preferably, a spring is provided at the connection between the left end of the air nozzle and the bracket, electromagnets are fixedly installed at the ends of the air nozzle and the bracket close to each other, and a plurality of switches are fixedly installed inside the connecting block corresponding to the electromagnets.

[0008] Preferably, a pull rod is fixedly mounted on the left end of the clamping block, the pull rod passes through the left end of the connecting block, and the pull rod is slidably connected to the connecting block.

[0009] Preferably, a sliding groove is provided inside the connecting block corresponding to the movable plate, and a spring three is provided inside the sliding groove corresponding to the movable plate.

[0010] Preferably, a pull rope is fixedly installed on the right end of the movable plate, and a winding roller is fixedly installed on the other end of the pull rope, and the winding roller is rotatably connected to the inside of the connecting block.

[0011] Preferably, a belt is provided on the winding roller, a gear is provided on the other side of the belt, the gear is rotatably connected to the connecting block, and a rack is fixedly installed at the right end of the discharge detection head corresponding to the gear.

[0012] Preferably, limit rods are inserted on all four sides of the support frame, and a support plate is slidably connected to the limit rods, and one end of the support plate away from the support frame is fixedly connected to the protective net rod.

[0013] Preferably, a spring four is fixedly mounted on the upper end of the limit rod, and the upper end of the spring four is fixedly connected to the protective net rod.

[0014] A detection method for a discharge detection device of a solar-blind ultraviolet transformer onboard a UAV, the specific steps are as follows:

[0015] Step 1: Anti-dropping: Push the card block to insert it into the card slot, so as to stabilize the connection of the discharge detection head and prevent the discharge detection head from falling off the connection block when the discharge detection of the airborne day-blind ultraviolet substation equipment on the drone body is performed;

[0016] Step 2: Dust removal: The gas is blown onto the surface of the conductive block on the discharge detection head, so as to blow off the dust on the surface of the conductive block and avoid a large amount of dust adhering to the conductive block;

[0017] Step 3: Range dust removal: The reciprocating rotation of the air nozzle is realized to ensure that the dust at different positions on the surface of the conductive block is blown off, thereby improving the dust removal quality;

[0018] Step 4: Water removal: The movable plate will also drive the sponge block to move obliquely upward. The provided sponge block is convenient for wiping dust and water on the surface of the conductive block from left to right, further ensuring the quality of discharge detection.

[0019] Preferably, .

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. When the present invention is used, the discharge detection head is inserted into the connecting block from bottom to top. As the discharge detection head continues to rise, the discharge detection head will fit with the card block and squeeze the card block to make the card block move to the left, compressing the second spring. When the card block and the card slot are at the same height, the card block is pushed to be inserted into the card slot under the action of the second spring, which is convenient for stabilizing the connection of the discharge detection head and avoiding the possibility of the discharge detection head falling off the connecting block when the discharge detection head is performing discharge detection of the airborne day-blind ultraviolet substation equipment on the drone body.

[0022] 2. When the present invention is used, when the card block moves to the left, it will also drive the piston rod to move to the left. The piston rod is arranged to squeeze the gas inside the hollow cavity into the connecting tube, and then spray it out through the hose and the air nozzle. The sprayed gas blows on the surface of the conductive block on the discharge detection head, which is convenient for blowing off the dust on the surface of the conductive block, thereby avoiding a large amount of dust adhering to the conductive block and affecting the discharge detection quality.

[0023] 3. When the present invention is used, when the card block and the piston rod move to the left, the card block presses the switch, and the switch starts the electromagnet, so that the air nozzle rotates on the bracket and compresses the spring 1. When the card block is separated from the switch, the air nozzle is pushed to reset under the action of the spring 1. Since the switches are arranged at equal intervals, the card block will contact and press the switches in turn, thereby realizing intermittent opening and closing of the electromagnet and reciprocating rotation of the air nozzle to spray air, ensuring that dust at different positions on the surface of the conductive block is blown off, thereby improving the dust removal quality.

[0024] 4. When the present invention is used, when the discharge detection head rises, it will also drive the rack to rise, the rack meshes with the gear, driving the gear to rotate, the gear drives the winding roller to rotate through the belt, the winding roller reels the pull rope, the pull rope pulls the movable plate to slide obliquely upward along the slide groove inside the connecting block, compressing spring three, the movable plate will also drive the sponge block to move obliquely upward, the provided sponge block is convenient for wiping dust and water on the surface of the conductive block from left to right, further ensuring the quality of discharge detection.

[0025] 5. When the present invention is in use, the protective net rod is convenient for protecting the rotor on the UAV body, avoiding interference from external debris on the rotor, ensuring the normal flight of the UAV body, pulling the limit rod upward to compress the spring four to move it out of the support frame, and then pulling out the positioning rod outward, the protective net rod can be removed from the support frame, which is convenient for cleaning the protective net rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is a structural schematic diagram of the connecting block and the discharge detection head in the present invention;

[0028] Figure 3 It is an enlarged structural schematic diagram of the connection block in the present invention;

[0029] Figure 4 For the present invention Figure 3 The structural diagram at A in the middle;

[0030] Figure 5 For the present invention Figure 3 The structural diagram at B in the middle;

[0031] Figure 6 For the present invention Figure 1 Schematic diagram of the structure at C in the middle.

[0032] In the figure: 1. UAV body; 2. Connecting block; 3. Discharge detection head; 4. Conductive block; 5. Card block; 6. Card slot; 7. Piston rod; 8. Hollow cavity; 9. Connecting pipe; 91. Jet nozzle; 10. Bracket; 11. Spring one; 12. Spring two; 13. Electromagnet; 14. Switch; 15. Pull rod; 16. Sponge block; 17. Movable plate; 18. Slide slot; 19. Spring three; 20. Press plate; 21. Pull rope; 22. Winding roller; 23. Belt; 24. Gear; 25. Rack; 26. Support frame; 27. Protective net rod; 28. Positioning rod; 29. ​​Limit rod; 30. Support plate; 31. Spring four. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0034] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0035] Reference Figure 1-Figure 6A discharge detection device and detection method for a day-blind ultraviolet substation equipment mounted on a drone, comprising a drone body 1, a connection block 2 is fixedly installed at the lower end of the drone body 1, a discharge detection head 3 is arranged at the lower side of the connection block 2, and a conductive block 4 is arranged inside the connection block 2 at the upper end of the discharge detection head 3, a card block 5 is slidably installed at the left end of the connection block 2, and a card slot 6 is opened at the left end of the discharge detection head 3 corresponding to the card block 5, a piston rod 7 is fixedly installed at the left end of the card block 5, a spring 12 is sleeved on the piston rod 7, a hollow cavity 8 is opened inside the connection block 2, and a hollow cavity 8 is opened inside the connection block 2. The cavity 8 is fixedly installed with a connecting pipe 9, the right end of which is connected to an air nozzle 91 through a hose, a bracket 10 is hinged on the air nozzle 91, the left end of the bracket 10 is fixedly connected to the inside of the connecting block 2, a spring 11 is provided at the connection between the left end of the air nozzle 91 and the bracket 10, an electromagnet 13 is fixedly installed at one end of the air nozzle 91 and the bracket 10 close to each other, and a number of switches 14 are fixedly installed inside the connecting block 2 corresponding to the electromagnet 13, a pull rod 15 is fixedly installed at the left end of the card block 5, the pull rod 15 passes through the left end of the connecting block 2, and the pull rod 15 is slidably connected to the connecting block 2;

[0036] When in use, the discharge detection head 3 is inserted into the connecting block 2 from bottom to top. As the discharge detection head 3 continues to rise, the discharge detection head 3 will fit with the card block 5 and squeeze the card block 5 to make the card block 5 move to the left, compressing the spring 2 12. When the card block 5 and the card slot 6 are highly overlapped with each other, under the action of the spring 2 12, the card block 5 is pushed to be inserted into the card slot 6, which is convenient for stabilizing the connection of the discharge detection head 3 and avoiding the possibility of the discharge detection head 3 falling off the connecting block 2 when the discharge detection of the airborne day-blind ultraviolet substation equipment is performed on the drone body 1. When the card block 5 moves to the left, it will also drive the piston rod 7 to move to the left. The piston rod 7 squeezes the gas inside the hollow cavity 8 into the connecting pipe 9, and then sprays it out through the hose and the air nozzle 91. The gas discharged is blown onto the surface of the conductive block 4 on the discharge detection head 3, which is convenient for blowing off the dust on the surface of the conductive block 4, avoiding a large amount of dust adhering to the conductive block 4 and affecting the discharge detection quality. When the block 5 and the piston rod 7 move to the left, the block 5 presses the switch 14, and the switch 14 starts the electromagnet 13, so that the air nozzle 91 rotates on the bracket 10 and compresses the spring 11. When the block 5 is separated from the switch 14, the air nozzle 91 is pushed to reset under the action of the spring 11. Since the switches 14 are arranged at equal intervals, the block 5 will contact and press the switches 14 in turn, thereby realizing the intermittent opening and closing of the electromagnet 13 and the reciprocating rotation of the air nozzle 91 to ensure that the dust at different positions on the surface of the conductive block 4 is blown off, thereby improving the dust removal quality.

[0037] In this embodiment, a sponge block 16 is provided inside the connecting block 2 corresponding to the conductive block 4 on the discharge detection head 3, and a movable plate 17 is fixedly installed on the upper end of the sponge block 16. A slide groove 18 is provided inside the connecting block 2 corresponding to the movable plate 17, and a spring three 19 is provided inside the slide groove 18 corresponding to the movable plate 17, and a pressure plate 20 is fixedly installed inside the connecting block 2 corresponding to the movable plate 17, a pull rope 21 is fixedly installed on the right end of the movable plate 17, and a winding roller 22 is fixedly installed on the other end of the pull rope 21, and the winding roller 22 is rotatably connected to the inside of the connecting block 2, a belt 23 is provided on the winding roller 22, and a gear 24 is provided on the other side of the belt 23, and the gear 24 is rotatably connected to the connecting block 2, and a rack 25 is fixedly installed on the right end of the discharge detection head 3 corresponding to the gear 24;

[0038] During use, when the discharge detection head 3 rises, the rack 25 will also be driven to rise, and the rack 25 will mesh with the gear 24, driving the gear 24 to rotate. The gear 24 drives the winding roller 22 to rotate through the belt 23, and the winding roller 22 reels the pull rope 21. The pull rope 21 pulls the movable plate 17 to slide obliquely upward along the slide groove 18 inside the connecting block 2, compressing the spring three 19. The movable plate 17 will also drive the sponge block 16 to move obliquely upward. The provided sponge block 16 is convenient for wiping dust and water on the surface of the conductive block 4 from left to right, further ensuring the quality of discharge detection.

[0039] In this embodiment, a support frame 26 is fixedly installed in the middle of the upper end of the drone body 1, and protective net rods 27 are provided on the four sides of the support frame 26 corresponding to the fan blades of the drone body 1. A positioning rod 28 is fixedly installed on one end of the protective net rod 27 close to the middle of the support frame 26, and the positioning rod 28 is inserted on the support frame 26. Limit rods 29 are inserted on the four sides of the support frame 26, and a support plate 30 is slidably connected to the limit rod 29. The end of the support plate 30 away from the support frame 26 is fixedly connected to the protective net rod 27, and a spring four 31 is fixedly installed on the upper end of the limit rod 29, and the upper end of the spring four 31 is fixedly connected to the protective net rod 27;

[0040] When in use, the protective net rod 27 is convenient for protecting the rotor on the UAV body 1 to prevent the rotor from being disturbed by external debris, thereby ensuring the normal flight of the UAV body 1. The limit rod 29 is pulled upward to compress the spring four 31 to move it out of the support frame 26, and then the positioning rod 28 is pulled out to remove the protective net rod 27 from the support frame 26, so that the protective net rod 27 can be easily cleaned.

[0041] A detection method for a discharge detection device of a solar-blind ultraviolet transformer onboard a UAV, the specific steps are as follows:

[0042] Step 1, anti-falling off: push the card block 5 to be inserted into the card slot 6, so as to stabilize the connection of the discharge detection head 3 and prevent the discharge detection head 3 from falling off from the connection block 2 when the discharge detection of the airborne day-blind ultraviolet substation equipment is performed on the drone body 1;

[0043] Step 2, dust removal: The ejected gas is blown onto the surface of the conductive block 4 on the discharge detection head 3, so as to blow off the dust on the surface of the conductive block 4 and avoid a large amount of dust adhering to the conductive block 4;

[0044] Step 3: Range dust removal: The reciprocating rotation of the air nozzle 91 is realized to blow air, ensuring that dust at different positions on the surface of the conductive block 4 is blown off, thereby improving the dust removal quality;

[0045] Step 4: Water removal: The movable plate 17 will also drive the sponge block 16 to move obliquely upward. The provided sponge block 16 is convenient for wiping dust and water on the surface of the conductive block 4 from left to right, further ensuring the quality of discharge detection.

[0046] Working principle:

[0047] When the present invention is used, the discharge detection head 3 is inserted into the connection block 2 from bottom to top. As the discharge detection head 3 continues to rise, the discharge detection head 3 will fit with the card block 5 and squeeze the card block 5 to make the card block 5 move to the left, compressing the spring 2 12. When the card block 5 and the card slot 6 are highly overlapped with each other, under the action of the spring 2 12, the card block 5 is pushed to be inserted into the card slot 6, which is convenient for stabilizing the connection of the discharge detection head 3 and avoiding the possibility of the discharge detection head 3 falling off from the connection block 2 when the discharge detection of the airborne day-blind ultraviolet substation equipment is performed on the drone body 1. When the card block 5 moves to the left, it will also drive The piston rod 7 moves to the left, and the piston rod 7 squeezes the gas inside the hollow cavity 8 into the connecting tube 9, and then sprays it out through the hose and the air nozzle 91. The sprayed gas blows on the surface of the conductive block 4 on the discharge detection head 3, which is convenient for blowing off the dust on the surface of the conductive block 4, avoiding a large amount of dust adhering to the conductive block 4 and affecting the discharge detection quality. When the block 5 and the piston rod 7 move to the left, the block 5 presses the switch 14, and the switch 14 starts the electromagnet 13, so that the air nozzle 91 rotates on the bracket 10 and compresses the spring 11. When the block 5 is separated from the switch 14, the air nozzle 91 is pushed to reset under the action of the spring 11. Since the switches 14 are arranged at equal intervals, the card block 5 will contact and press the switches 14 in turn, thereby realizing the intermittent opening and closing of the electromagnet 13, realizing the reciprocating rotation of the air nozzle 91 to spray air, ensuring that the dust at different positions on the surface of the conductive block 4 is blown off, and the dust removal quality is improved. When the discharge detection head 3 rises, it will also drive the rack 25 to rise, and the rack 25 meshes with the gear 24 to drive the gear 24 to rotate. The gear 24 drives the winding roller 22 to rotate through the belt 23, and the winding roller 22 reels the pull rope 21. The pull rope 21 pulls the movable plate 17 to slide obliquely upward along the slide groove 18 inside the connecting block 2. By compressing the spring three 19, the movable plate 17 will also drive the sponge block 16 to move obliquely upward. The provided sponge block 16 is convenient for wiping dust and water on the surface of the conductive block 4 from left to right, further ensuring the quality of discharge detection. The provided protective net rod 27 is convenient for protecting the rotor on the UAV body 1 to avoid interference from external debris on the rotor, ensuring the normal flight of the UAV body 1. Pull the limit rod 29 upward to compress the spring four 31 to move it out of the support frame 26, and then pull out the positioning rod 28 to remove the protective net rod 27 from the support frame 26, so as to facilitate cleaning of the protective net rod 27.

[0048] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A discharge detection device for a solar-blind ultraviolet power conversion device mounted on a drone, comprising a drone body (1), characterized in that: A connection block (2) is fixedly mounted on the lower end of the drone body (1), a discharge detection head (3) is arranged on the lower side of the connection block (2), and a conductive block (4) is arranged inside the connection block (2) at the upper end of the discharge detection head (3). A clamping block (5) is slidably mounted on the left end of the connection block (2), and a clamping groove (6) is provided on the left end of the discharge detection head (3) corresponding to the clamping block (5). A piston rod (7) is fixedly mounted on the left end of the clamping block (5), and a spring (12) is sleeved on the piston rod (7). A hollow cavity (8) is provided inside the connection block (2), and a connection pipe (9) is fixedly mounted inside the connection block (2) corresponding to the hollow cavity (8). The right end of the connection pipe (9) is connected to an air nozzle (91) through a hose. The connection block (2) corresponds to the discharge detection head (3). The conductive block (4) on the detection head (3) is provided with a sponge block (16), a movable plate (17) is fixedly installed on the upper end of the sponge block (16), and a pressure plate (20) is fixedly installed inside the connection block (2) corresponding to the movable plate (17). A support frame (26) is fixedly installed in the middle of the upper end of the drone body (1), and protective net rods (27) are provided on all sides of the support frame (26) corresponding to the fan blades of the drone body (1). A positioning rod (28) is fixedly installed at one end of the protective net rod (27) close to the middle of the support frame (26), and the positioning rod (28) is inserted on the support frame (26). A bracket (10) is hinged on the air nozzle (91), and the left end of the bracket (10) is fixedly connected to the inside of the connection block (2). The air nozzle A spring (11) is provided at the connection between the left end of the nozzle (91) and the bracket (10), an electromagnet (13) is fixedly installed at the end where the nozzle (91) and the bracket (10) are close to each other, and a plurality of switches (14) are fixedly installed inside the connecting block (2) corresponding to the electromagnet (13), a pull rod (15) is fixedly installed at the left end of the card block (5), the pull rod (15) passes through the left end of the connecting block (2), and the pull rod (15) is slidably connected to the connecting block (2), a sliding groove (18) is provided inside the connecting block (2) corresponding to the movable plate (17), and a spring (19) is provided inside the sliding groove (18) corresponding to the movable plate (17), a pull rope (21) is fixedly installed at the right end of the movable plate (17), and the other end of the pull rope (21) is fixedly installed A winding roller (22) is provided, the winding roller (22) is rotatably connected to the inside of the connecting block (2), a belt (23) is provided on the winding roller (22), a gear (24) is provided on the other side of the belt (23), the gear (24) is rotatably connected to the connecting block (2), and a rack (25) is fixedly installed on the right end of the discharge detection head (3) corresponding to the gear (24), and the support frame (26) is provided with a limit rod (29) inserted on all sides, and a support plate (30) is slidably connected to the limit rod (29), and the end of the support plate (30) away from the support frame (26) is fixedly connected to the protective net rod (27), and a spring four (31) is fixedly installed on the upper end of the limit rod (29), and the upper end of the spring four (31) is fixedly connected to the protective net rod (27); When in use, the discharge detection head (3) is inserted into the connection block (2) from bottom to top. As the discharge detection head (3) continues to rise, the discharge detection head (3) will fit with the clamping block (5) and squeeze the clamping block (5), so that the clamping block (5) moves to the left, compressing the second spring (12). When the height of the clamping block (5) and the clamping slot (6) overlap each other, under the action of the second spring (12), the clamping block (5) is pushed to be inserted into the clamping slot (6). When the clamping block (5) moves to the left, it also drives the piston rod (7) to move to the left. The plug rod (7) squeezes the gas inside the hollow cavity (8) into the connecting tube (9), and then ejects it through the hose and the air nozzle (91). The ejected gas blows on the surface of the conductive block (4) on the discharge detection head (3), so as to blow off the dust on the surface of the conductive block (4). When the block (5) and the piston rod (7) move to the left, the block (5) presses the switch (14), and the switch (14) activates the electromagnet (13), so that the air nozzle (91) rotates on the bracket (10), compressing the spring 1 (11). When the block (5) is in contact with the switch, the air nozzle (91) rotates on the bracket (10), compressing the spring 1 (11). When the switch (14) is separated, the air nozzle (91) is pushed to reset under the action of the spring 1 (11). Since the switches (14) are arranged at equal intervals, the card block (5) will contact and press the switches (14) in turn, thereby realizing the intermittent opening and closing of the electromagnet (13), realizing the reciprocating rotation of the air nozzle (91) to spray air, ensuring that dust at different positions on the surface of the conductive block (4) is blown off, and the dust removal quality is improved. When the discharge detection head (3) rises, it will also drive the rack (25) to rise, and the rack (25) and The gear (24) is meshed, driving the gear (24) to rotate. The gear (24) drives the winding roller (22) to rotate through the belt (23). The winding roller (22) winds up the pull rope (21). The pull rope (21) pulls the movable plate (17) to slide obliquely upward along the slide groove (18) inside the connecting block (2). The spring three (19) is compressed, and the movable plate (17) also drives the sponge block (16) to move obliquely upward. The sponge block (16) is arranged to facilitate wiping dust and water on the surface of the conductive block (4) from left to right.

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